144963 ÷ 39 
We want to figure out the number of times 144963 can be divided by 39.

Advancing to step 1:
39 goes into 1 0 times with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Fetch the next digit (4) from the dividend, attach it to 1 and continue: 14 / 39

Advancing to step 2:
39 can be fit into 14 0 times, resulting in a remainder of 14.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 14 after subtracting 0 from 14.
Append the next digit (4) from the dividend to 14 and continue with: 144 / 39

Step 3:
144 divided by 39 is 3 with a remainder of 27.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
If we take 117 away from 144, we end up with 27.
Bring next digit (9) of the dividend behind the 27 and repeat the process: 279 / 39

Step 4:
39 can be fit into 279 7 times, resulting in a remainder of 6.
Record the quotient 7 as the next digit in the result. 
Result so far: 37.0
Subtracting 273 from 279 leaves us with 6.
Fetch the next digit (6) from the dividend, attach it to 6 and continue: 66 / 39

Advancing to step 5:
66 divided by 39 is 1 with a remainder of 27.
The number 1 becomes the next digit in our result. 
Result so far: 371.0
If we take 39 away from 66, we end up with 27.
Fetch the next digit (3) from the dividend, attach it to 27 and continue: 273 / 39

On to step 6:
273 divided by 39 is 7 with a remainder of 0.
Put 7 as the next digit of the answer. 
Result so far: 3717.0
Deduct 273 from 273 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 7:
When dividing 0 by 39, we get 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 3717.0
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 8:
If we divide 0 by 39, we get 0 and a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 3717.0
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final result is 3717.0 with a remainder of 0.0.